Question

The differential equation is (D+3) y_0(t) = 0 where D = dy/dt
Write a program in C++ to plot a numerical solution using this
formula y_0 (t+delta t) = (1+ a * delta t) y_0(t) where a = 3 and
y_0(0) = 2 for 0<= t<= 10. You may try different values of
delta t to get a good enough approximation.